Martinez, who was fired by Georgia coach Mark Richt in December after the Bulldog defense struggled in back-to-back seasons, reportedly was hired over the weekend to be Jim Harbaugh's defensive backs coach at Stanford.

But Dienhart is now saying, according to a Stanford source, that Martinez is taking the assistant's job at OU, which came open when former Sooner defensive ends coach Chris Wilson left to become the co-defensive coordinator/defensive line coach at Mississippi State.

Martinez's background is with defensive backs — he coached defensive backs at Georgia for nine years — but it's unclear what position group he'll coach in Norman if the report is true.